Gas Sampling Bags ( pvdf film )
capacity:3L 
Valve:PTFE
bag film: PVDF 
valve number:two
small paper box:53*34*17CM 
one box with 60pcs,3L pvf gas sample bags.

bigger paper box:53*35*32 CM
one box with 120pcs ,3L pvdf gas sample bags
uint price:9.5USD,FOB shanghai .



Band:E-Switch,     easy to use valve.
Made in china ,manufacture Shanghai Sunrise Instrument Co.,Ltd.
Good quality, low price!



we offer sizes from 5M L to 5L.
 
Available with polypropylene (we get patent) or PTFE  valve;
choose bags with a septum fitting for syringe sampling or standard spiking.
Maximum operating temperature: 100 °C   with polypropylene valves 



Sampling bags are low-cost, whole-air sampling devices for VOCs and permanent gases. Several EPA, NIOSH, and OSHA methods exist for bag sampling for a variety of applications: stationary sources emissions; workplace atmospheres; ambient, indoor air quality; and breath analysis. Choose the valve type appropriate for your application. A single eyelet provides handling convenience.